The mother of a missing Washington state toddler didn't run out of gas on the day her son disappeared — a discovery that contradicts what she has previously told investigators, police said Wednesday.
Julia Biryukova has told police that her 2-year-old son, Sky Metalwala, vanished Sunday in Bellevue when she left him sleeping alone in her unlocked car after it ran out of gas. She and her 4-year-old daughter walked to get gas, she said, and when they returned an hour later, the boy was gone.
But investigators have found that there was enough gas in the car to run a considerable distance, Bellevue police Maj. Mike Johnson said Wednesday afternoon. Police haven't ruled out some other mechanical problem with the car.
Johnson also authorities do not understand why Biryukova continues to decline a request to undergo a polygraph, according to NBC affilate KING 5 News.
“The story doesn’t add up, the whereabouts of Sky are unknown, the mother’s story is falling apart day to day, and her lack of cooperation so far in regard to providing more information proactively and submitting to a polygraph, doesn’t help," Johnson told KING 5.
Johnson revealed that Biryukova said she was taking the boy to a hospital because he didn't feel well — even though she left her purse, wallet and identification at home. It wasn't clear how she expected to get gas for the car or have her son treated without the items, he said.
Sky's disappearance came amid a bitter divorce and custody fight between Biryukova and the boy's father, Solomon Metalwala. During a tough mediation session that lasted about 12 hours last week, the parties reached a tentative agreement that would allow Metalwala to have some visitation with Sky and his older sister.
But two days later — and two days before she reported her son missing — Biryukova decided to pull out of the agreement, Metalwala's divorce attorney, D. Michael Tomkins, said Wednesday. In a letter sent by her attorney, Biryukova insisted that everyone at the mediation session had been against her and the settlement was unfair, Tomkins said.
The children didn't attend the marathon session, and it's possible they were left home alone for the entire time — raising the possibility that Sky could have become dehydrated, Tomkins said.
Papers filed in the divorce say that Biryukova suffered from "severe" obsessive-compulsive disorder. Metalwala wrote in a declaration that she would frequently go on 10-hour cleaning binges during which she wouldn't even feed the children, but a doctor reported that her diagnosis did not interfere with her ability to care for the kids.
Johnson said Biryukova acknowledged having a history of leaving the children home alone for extended periods of time. Police know whether she did so during the lengthy mediation — but they won't release that information, Johnson said.
Investigators on Wednesday were focusing on processing the car for forensic evidence and to determine whether it really ran out of gas or had other mechanical problems. They also were giving voluntary polygraph exams to the boy's father and several of his relatives and taking DNA samples to match with DNA evidence found at Biryukova's apartment.
If Sky was in fact left in the car, it wouldn't have been the first time.
When he was 3 months old, his parents left him in their SUV in a Target parking lot for 55 minutes on a 27-degree day, court records showed. The couple came out of the store to get Sky only after police arrived and asked for the vehicle's owner to be paged.
Redmond police cited both parents for reckless endangerment in the December 2009 incident. However, the case was dismissed early this year after the pair completed a year of probation, 40 hours of community service and a 10-week parenting class.